A body of mass \(m\) and radius of gyration \(k\) is to be replaced by two masses \(m_{1}\) and \(m_{2}\) located at distances \(h_{1}\) and \(h_{2}\) from the \(C G\) of the original body. An equivalent dynamic system will result, if

(a) \(h_{1}+h_{2}=k\)

(b) \(h_{1}^{2}+h_{2}^{2}=k^{2}\)

(c) \(h_{1}+h_{2}=k^{2}\)

(d) \(\sqrt{h_{1} h_{2}}=k^{2}\).